Wheeled cart that can be affixed to a vehicle&#39;s wheel holder

ABSTRACT

A Wheeled Cart which can be connected in the same manner as the car&#39;s own wheel, allowing, upon removal of the car wheel, the positioning of the Wheeled Cart with the same screws or the same nuts, without needing to make any adaptations; the idea was to develop a device that adapts to the different configurations of wheel fastening on wheel holders, according to how it is designed on the wheel holder, which is why a very important point that is taken into account is that the chassis or main body must regulate the layout or configuration of the holes, as well as the diameter of the wheel to be replaced, the objective is to enable movement of the car when the latter cannot do so with its wheels, which is why the device is designed based on two bodies named “chassis” facing each other, with a common central connection part, one superior part named “superior end” and one inferior part named “inferior end”, which accommodates a 360° directional wheel and a third connecting element between the chassis, which affixes the position of the latter with the purpose of securing it; and the device is characterized by the fact that its Body which we name “Chassis” is comprised of two parts connected in the central area of each of the parts by means of a bolt bushing, and which we will hereinafter name “Central Part”, and from this Central Part a formation extends to each part of the chassis, in a symmetrical manner, generating what we shall name “Superior Ends” and the other “Inferior Ends”; each of the latter accommodates a wheel with its corresponding fork and 360° pivotal axis; and in turn each Superior End has on its extremities through-holes of a greater dimension than that of the adjustment screws for the wheels of the car and of a lesser dimension than the diameter of the nut of that screw or screw head; in turn, between each of the Superior Ends and the Central Part of each part of the body of the chassis there is a screw with a wing nut fixed to the upper body of the chassis, with a component named “bridge” located between both screws and affixed by the wing nuts, with a through-hole in its central part of the same diameter as the through-holes at the extremities of each of the Superior Ends and this bridge has an oval orifice instead of a circular orifice in the connection with each screw by means of a wing nut.

This invention patent application refers to a WHEELED CART THAT CAN BE AFFIXED TO A VEHICLE'S WHEEL HOLDER, with the premise that the wheeled cart and the car's own wheel may be attached in the same manner.

This shall allow that upon removing the car's wheel, the Wheeled Cart may be positioned with the same screws or the same nuts, with no need to make any adaptations.

Based on this premise, the idea was to develop a device which is fitted on wheels, but that at the same time may be adapted to the different wheel-attachment configurations on wheel holders, whether they be single-screwed, single-nutted, or use multiple screws or nuts, according to how this is designed on the wheel holder.

A very important aspect to consider is that the chassis or main body must regulate the layout or configuration of the holes as well as the diameter of the wheel to be replaced.

The objective is to enable the possibility of moving the car when it cannot do so with its wheels, whether when its wheels have a deflated tire, or when the axis that allows the wheel to turn is broken, or has a mechanical difficulty which impedes it from turning.

Hence the design is of an articulated chassis body, which includes two 360° directional wheels. This articulated body shall fulfil two functions: the first is that it is articulated to be connected with at least two screws or two nuts from the wheel holder and the second function, once at least two screws have been put into place, is to be able to regulate the distance between the center of the wheel holder and the support plane of the two 360° directional wheels.

In this way, the chassis has two parts connected by a bolt or other component replacing the bolt, allowing it to be coupled and uncoupled so that the link between the two parts that make up the chassis may rotate on the axis of the bolted connection or other element replacing the bolt.

In this way, two necessary movements to meet the requirements are achieved: a scissor-type movement, given that the constituent elements pivot around the bolted connection or other element replacing the bolt, whereby, upon doing so, two ends move towards each other and the other ends move away from each other; the other movement being if the bolted connection or other element is on one side fixed on a bushing and on the other side on a sliding orifice, the ends that are not positioned on the wheel holder may move towards or away from each other, without disassembling the bolted connection or that based on the other element

In this way the following operating conditions were determined: A) the two parts may pivot on the bolted connection and in this way their ends may move towards or away from each other, ends which we can name “superior” and in this way each end may be affixed or positioned to the wheel holder with a nut or a screw. B) Once each superior end is positioned on the wheel holder, the ends we can name “inferior”, each of which comprises a 360° directional wheel, may move towards or away from each other, by sliding the bolted connection or other element replacing the bolt on the radial slider bar until the desired distance between the support plane of the two 360° directional wheels and the center of the wheel holder is reached.

These determining factors were the starting point for the resolution of the problem, and are absolutely determinant for the operation of the device together with the application of our ideas, condition: 1) acting on the formation of the device, taking into account that the two parts of the chassis must be able to pivot together like scissors blades in movement, and that each part possesses two ends, one superior end which adapts to the wheel holder and another inferior end which comprises the 360° directional wheel; 2) which acts on the connection between the components affixed to each other by another element or a bolt, which is formally resolved by means of a bushing; 3) which carries out its function which must be effective and precise, firstly adapting to at least two screws or nuts from the wheel holder and then enabling the directional wheels to move towards or away from each other, with the aim of bringing their support plane closer or further apart, as refers to the rotating center of the wheel holder.

The constituent elements of our Utility Model are: two main bodies named “chassis” facing each other, with a central part connected to a common bushing, a superior part named “superior end” and an inferior part named “inferior end”, which fits a 360° pivoting wheel and a third connecting element between the two chassis, which affixes the position of the latter in order to secure the connection.

In FIG. 1 one can observe the device from a lateral perspective, in which the Left-hand side Chassis Body (1) stands out, with its Center Part (2), its Inferior End (3) and its Superior End (4), connected by means of the Bolt Bushing (5) to the Right-hand side Chassis Body (6), with its Center Part (7), its Inferior End (8) and its Superior End (9). In parts (2) and (7) we notice the Formings (10) and (11) which accommodate the Bolt Bushing (5), at the Inferior Ends (3) and (8), the Formings (12) and (13) which contain the 360° Directional Wheels (14) and (15), and the Formings (16) and (17) which possess the Orifices (18) and (19) through which the screws of the vehicle's wheel holder can pass. Lastly, we see the Third Fastening Element (20) composed of a longitudinal body (21) with a depression in its central part, with a through-hole (22) which has two sliding Orifices (25) and (26) near each end (23) and (24) which connect to screws (27) and (28) or (29) and (30) respectively, located on the surface of the respective Superior Ends (4) and (9) respectively, and which affix the Third Fastening Element (20) by means of Wing Nuts (31) and (32).

In FIG. 2 the device is presented when in use, related to the holder of the sketched wheel, using screws from the wheel holder (33), (34) and (35) that are introduced in orifices (18) and (19) of the Superior and corresponding Ends (4) and (9), in turn, one can observe the manner in which the Third Fastening Element (20) is connected by screws (29) and (30) to the Superior ends (4) and (9) and affixed by Wing Nuts (31) and (32) and how the whole device connects to the wheel holder by means of orifices (18), (19) and (22). 

1) A WHEELED CART THAT CAN BE AFFIXED TO A VEHICLE'S WHEEL HOLDER, consisting of a chassis that is connected by screws or nuts to the wheel holder which possesses fixed or directional wheels that rotate 360° on their pivotal axis, and is characterized by the fact that its Body which we name “Chassis” is comprised of two parts connected in the central area of each of the parts by means of a bolt bushing, and which we will hereinafter name “Central Part”, and from this Central Part a formation extends to each part of the chassis, in a symmetrical manner, generating what we shall name “Superior Ends” and the other “Inferior Ends”; each of the latter accommodates a wheel with its corresponding fork and 360° pivotal axis; and in turn each Superior End has on its extremities through-holes of a greater dimension than that of the adjustment screws for the wheels of the car and of a lesser dimension than the diameter of the nut of that screw or screw head; in turn, between each of the Superior Ends and the Central Part of each part of the body of the chassis there is a screw with a wing nut fixed to the body of the chassis, with a component named “bridge” located between both screws and affixed by the wing nuts, with a through-hole in its central part of the same diameter as the through-holes at the extremities of each of the Superior Ends and this bridge has an oval orifice instead of a circular orifice in the connection with each screw by means of a wing nut. 